Claude Opus 4.8 vs GPT 4o
Anthropic's most capable Opus yet, built for long-horizon autonomous agents and frontier coding.
OpenAI's original omni model supporting text and image inputs.
No captured outputs for these models yet.
Frequently Asked Questions: Claude Opus 4.8 vs GPT 4o▼
Which is better, Claude Opus 4.8 or GPT 4o?
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Based on the Capability Index, Claude Opus 4.8 scores higher (89.2 vs 63.0). However, "better" depends on your use case — pricing, speed, context window, and specific capability needs all matter.
Which is cheaper, Claude Opus 4.8 or GPT 4o?
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GPT 4o has a lower blended cost. Claude Opus 4.8: $5.00 input / $25.00 output. GPT 4o: $2.50 input / $10.00 output.
Which has a larger context window, Claude Opus 4.8 or GPT 4o?
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Claude Opus 4.8 has a larger context window: Claude Opus 4.8 supports 1M tokens vs GPT 4o at 128K tokens.
Do both Claude Opus 4.8 and GPT 4o support vision?
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Yes, both Claude Opus 4.8 and GPT 4o support vision/image input.
Which has better coding performance, Claude Opus 4.8 or GPT 4o?
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Claude Opus 4.8 scores higher on SWE-bench Verified: Claude Opus 4.8 resolves 89% vs GPT 4o at 31%.
What are the key differences between Claude Opus 4.8 and GPT 4o?
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Key differences: Claude Opus 4.8 has a notably higher capability index (26.2 point gap); only Claude Opus 4.8 offers extended reasoning mode. Compare full specs on this page.
Which model should I choose for my use case?
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If cost is your priority, choose the cheaper option. If you need the highest intelligence for complex tasks, pick the higher-scoring model. For long documents or codebases, choose the larger context window. You can try both Claude Opus 4.8 and GPT 4o for free on idapt.app to see which performs better for your specific needs.